Finding the Fourth Proportional to 253,636,289.44, 350,018,130 and 154,517,033.20
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Solution
The fourth proportional to 253,636,289.44, 350,018,130 and 154,517,033.20 is: 213,233,536.63
Step by Step Solution
- Step 1: Write the proportion equation
253,636,289.44 : 350,018,130 = 154,517,033.20 : x - Step 2: Convert to fraction form
253,636,289.44/350,018,130 = 154,517,033.20/x - Step 3: Cross multiply
253,636,289.44x = 350,018,130 × 154,517,033.20 - Step 4: Simplify right side
253,636,289.44x = 54,083,763,013,811,912 - Step 5: Solve for x
x = 54,083,763,013,811,912/253,636,289.44 - Step 6: Final answer
x = 213,233,536.63
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.